If you find that the raidable bases UI is sitting in a stange location, this can be moved to a position of your choosing.
Look for the small green arrow on the UI and click on it.
To be able to click the button, you will have to have your inventory opened in the background so that your mouse cursor is usable.
To move the UI, simply click the arrows continuously until it is sitting in the position you want it.
As easy as that, you have moved the UI. Clicking anywhere on your screen should take you out of the UI editing mode.
Note: Look out for the arrow on other UI modules. There are others that are movable too.